Indiana
Power factor correction in Merrillville, IN
How power factor is billed in Merrillville, when correcting it is worth doing, and how to get your own bill reviewed.
Which utility serves Merrillville?
The research identifies NIPSCO as the delivery utility serving Merrillville. Confirm your facility's utility from its bill or service address; postal addresses and service boundaries can differ.
Territory source: NIPSCO territory listing.
The power-factor rule
NIPSCO Power-factor rule confirmed
NIPSCO adjusts billing demand for power factor on its larger commercial and industrial rates: up below 80% and down above 90% on Rate 624, with other rules on specialized and very large rates.
Rate 624 General Service Large. Applies to: Minimum billing demand 50 kW, up to 25,000 kW. Power-factor metering may be omitted below 300 kW. Billing demand rises 1% for each 1% the average monthly power factor is below 80% lagging, is unchanged from 80% to 90%, and falls 1% for each 1% above 90%. Leading power factor is treated as unity.
Rate 625 Metal Melting (500 kW contract and up); Rate 626 Off-Peak (200–15,000 kW). Applies to: As listed. When the power factor is below 95% lagging, demand is scaled by 0.95 divided by the power factor for the same half-hour interval. No credit. Corrected demand = demand × 0.95 / PF (same half-hour interval).
Rates 631, 632, 633 Industrial Power (10,000 kW and up). Applies to: Rate 631: at least 10,000 kW; Rate 632: 15,000–25,000 kW; Rate 633: 10,000–25,000 kW, at the applicable transmission or subtransmission voltage. The adjustment compares lagging kVAR with the allowance at an 85% power factor at maximum peak-period kW: $0.32 per kVAR of difference is added above the allowance and credited below it. Off-peak kVAR is limited to the peak-period ratio.
- NIPSCO's General Rule 8.6 lets it require power-factor correction, or install facilities at the customer's expense.
- Whether Rate 631 tier elections alter the kVAR provision was not checked.
As checked 2026-10-03. NIPSCO's full rules, tariff quotes and sources →
Is correction worth it in Merrillville?
Correction may reduce the applicable adjustment. The result depends on the schedule's measurement basis, minimums, ratchets and credit provisions; check the bill before assigning a benefit.
Working with us in Merrillville
Merrillville is about 120 miles from our Brookfield office, measured straight-line. Send your bills and available measurement data to discuss the appropriate next step and whether site work can be arranged.
Nearby
Schererville, IN · Gary, IN · Hammond, IN · East Chicago, IN · all service areas